Παραπομπή APA

Frederiksen Richard A. (1991). Compendium of sorghum diseases. APS Press.

Παραπομπή Chicago Style

Frederiksen Richard A. Compendium of Sorghum Diseases. USA: APS Press, 1991.

Παραπομπή MLA

Frederiksen Richard A. Compendium of Sorghum Diseases. APS Press, 1991.